Yamaha F4B, Service Manual

Page: 96 / 202

7-3
POWR
Power unit
4. Slowly pull the starter handle to align the
TDC mark
b
on the flywheel magnet and
the pointer
c
of the manual starter.
TIP:
Make sure that the rocker arms are not push-
ing the intake and exhaust valves.
5. Measure the intake and exhaust valve
clearances
d
and
e
.
6. Install a new gasket
h
, the cylinder head
cover
f
, the holders
c
,
d
,
i
, and
ground lead
b
, and then tighten the bolts
e
in the order
a
,
b
, and so on.
NOTICE: Do not reuse a gasket,
always replace it with a new one.
7. Install the ground leads
a
,
b
and
engine shut-off switch lead
a
to the
holders
c
and
d
.
Adjusting the valve clearance
Adjust the valve clearances when the engine
is cold.
e
c
a
d
b
e
e
e
f
g
b
c
e
d
Valve clearance:
Intake
d
and exhaust
e
:
0.08–0.12 mm (0.003–0.005 in)
e
e
i
b
c
d
f
h
a
c
e
b
d
e
a
b
d
c
a